earlier this month the fbi arrested one of the masterminds of the deep web. he built silk road. it was doing a billion dollars worth of commerce in illegal goods. it is so interesting because even as we talk about how the web changes everything about how we buy and sell and live, there's a whole secret web that is a very vibrant marketplace for bad goods, bad services, this is where you hire -- >> american people are watching how or the country is conducting surveillance on every day people and every day activities, we're watching stories about surveillance on overseas leaders including allies. it's hard to reconcile with what you're saying. how does this happen without being able to trace it, catch people and stop people from, you know, endangering the public and children alike. >> that's what's so fascinating. the people who built it can't break it. it was built, the software was designed by researchers at the u.s. naval research laboratory. they knew once you have these levels of coding, it's very hard to trace. so now the fbi is trying to have new tools which they can penetr